Liquid fuel burning mechanism



May 19, 1931. w. w. WILLIAMS LIQUID FUEL BURNING MECHANISII Original Filed July 31, 1922 IN V EN TOR. WWR PV- W/[ L /AM. 5 BY ylm A TTORNEYS.

Patented May 19, 1931 WALTER W. WILLIAMS, OF IBIIOOJMIINGTON,

ILLINOIS, ASSIGNOR TO WILLIAMS oIL-o- MATIG HEATING CORPORATION, OF BLOOMINGTON, ILLINOIS, A CORPORATION OF ILLINOIS LIQUID FUEL BURNING- MECHANISM Original application filed July 31, 1922, Serial No. 578,618.. Divided and this application filed May 12, 1928.

Serial No. 277,183.

vision of applicants prior application,

Serial No. 578,618, filed July 31, 1922, which became Patent No. 1,711,436, on April 30, 1929.

to which this device is applied, reference is made to applicants patent bearing No. 1,451,798 wherein appears detailed showing and description of essential parts of an oil burner of the class to which this device is to be applied.

The invention is related to an oil burner wherein an extraneous gas supply is utilized for ignition of atomized fuel oil generated through the action of the machine,

active to develop the fuel mixture.

The invention consists in the interposition of a control device for governing the supply of such extraneous gas, whereby the minimum of such supply is used to effect proper ignition of the atomized fuel oil.

The invention also includes the relationing of the extraneous gas control to the normal working parts of a fuel burner.

Referring to the drawing, the figure is, in 1 part, a side elevation, part in section showing an oil burner with the gas control means associated therewith, and in part, a diagrammatic showing of current producing an electrical connection, functioning in connection with the operation of the oil burner and the gas control means.

In connection with the device referred to in the above mentioned patent, a constantly burning pilot light is shown as a means of ignition of the fuel mixture, developed as a result of the operation of the so-called burner mechanism. 7

Experience with this character of ignition has demonstrated that quite a considerable constant gas flame is required in order that it be maintained against extinguishment through draft or otherwise, thereby resulting in quite a large cost for such constant gas supply. The present conception of conheater unit.

" to them.

trolofsuch gas supply is directed to a reduction of such cost to the minimum. This 1s accomplished by a control of the gas supply thatwill effect a mere temporary supply of gnition gas at the moment only of starting the fuel atomized oil generator, as setforth in said prior application SerialNo.

578,618 of Patent No. 1,711,436.

For information with respect to oil burnf 10 ers and particularly with respect to the type In the drawing,,A indicates a motor housing.f Ba fan housing. C a blast or air pipe that communicates with a heating unit (notshown). D refers to a compression pump housing, said pump, being active, as "explained in my Patent No. 1,451,798 to develop: pressure upon a fluid and air mixture preliminary to dischargetoa burner pipe 'E' which also communicates with the Electrical connections are shown from a'sparkcoil to a motor and to other functioning essentials to the operation 0ftheburner that are'referred'to especially in connection with mysaid prior patent, but

as no claims are hereinbeing made for these features, no ,specialreference will be made A burner or supply pipe E is shown that, in practice, is designed to discharge fuel,

- generated by the burner mechanism, from its tip or end portion65 into a combustion chamber (not shown) and it is the purpose of my device to furnish ignition means for said fuel supply. e

, Referring to the course of the extraneous gas supply 58, is a gas pipe from a supply source, communicating to housing 10, of the gas valve, said gas passing through said valve and therefrom through the connections 67a to a lead pipe 66,the forward end of which discharges in proximity to the deflector plate 68 overlying the forward end of fuel supply pipe E upon which it is supported by the bracket member F. The gas is purposed to be ignited by an electric spark and to this end an electrical connection is provided from spark coil 69 to a point in proximity to the said rod member. To complete the electrical circuit, connection is made through conductor 7 3 with the contact points 74 supported in insulated relationship with frame portion 23, whereby, when lever 37 lies between and in contact with said contact points an electrical circuit will be established and a jump-spark produced across the space between the terminal ends, respectively, of the extraneous supply pipe 66 and the sparking wire 70.- The contact relationship between contact points 7 4 and lever 37 is such that, when the motor has been started and pressure is produced to project thrust pin 36 upwardly and in such thrust action effecting a raising of lever 37, the electrical contact is made to continue until valve stem 18, shall have been sufliciently depressed to admit the necessary measured supply of gas and for its advancement under normal gas pressure, to the discharge point from gas feed pipe 58 and into position to be ignited by the then active electrical current, through the medium of the jump-spark, but releasable from such contact, immediately upon the tilting of said lever 37 far enough to effect a release of the valve stem 18, whereby the latter is closed as fully illustrated and described in said Patent No. 1,711,436. The breaking of the electrical circuit will discontinue the jump-spark durng the period that the motor is in action, but upon termination of such action, lever 37 will be returned in the manner hereinbefore explained, into seated relation with the contact points 74 in 5 readiness for service in reestablishing the tem porary jump-spark circuit upon the motor being again started for the purpose of producing fuel atomized oil. What I claim is: 40 In a liquid fuel burning mechanism, an air pipe, a burner pipe in said air pipe, a jet on the extremity of said pipe, sparking elements, one of said elements being mounted upon the burner pipe and insulated therefrom, the other of said elements comprising a metal tube leading from an independent I gas supply mounted in said air pipe and supported upon the burner pipe, said sparking elements being curved downwardly at their ends, which are adjacent the said jet.

Signed at Bloomington, Illinois, this 10th day of May, 1928.

WALTER W. WILLIAMS. 

